Type-writing machine.



w. J. NEIDIG. TYPE WRITING MACHINE. APPLICATION FILEDIAPBHLDIQIZ.

Patented Feb. 18, 1913.

WILLIAM J. WISCONSIN, ASSI GNOR BY ASSIGNMENTS,

, TRUSTEE, A CORPORATION OF ILLINOIS.

TO CHICAGO TITLE m'us'i rrmz wiirrmo hang ng.

- ...sc e m:nu era Patented Feb.18,1913. 57,386; iniiiaea na thisapplidation an April 4,

s 1912. srlaii-irze-aaaagssb' generic invention which is des'bribed andclaimed inf my, ,o-.-'pe ndirig pplication 1 5.'A ril 2Q,19Qs,?seria1--N428,212; he'ieaning objects ofjmy invention, as coin'moiie tq'f'thegeneric invention of the' said applications and to the pres'entbranehori-divi'sion thereoflare, first, to indicateduring 9' Zseveral of thesheet, the distance s -;'arri'val of the bottom edgeof thesheet at a Ipredetermined distance'from the 'printing pointafia 4 .1 i j l In thewpresentdivisionvof the invention I employ an operative member,indicating means controlled 'by the said member, slipdrive )connectionsfor imparting to said op 'erativemezrber moyement correlated oreoordinated with that of the sheet-advancing means, and sheet-controlledmeans for de- 40 taining-said member in-the presence of the sheet andreleasing-it on the passage of the bottom of the sheet to'movesimultaneously with, the isheet-advancing means and therehy'bringfabout' the actuation of the indi- :fcating means, g Y

Various forms and kinds of indicating :means suitable to be employed forindicating the arrivalof the bottom of a sheet at v a given distancefromthe printing point are 59 known in the art inyarious connections,and are suitable to be employed in carrying the broader phases of theinvention into effect. Preferably. however, I employ a scale or fixedand the iother movable in =uni- QI Withthe sheetrad'vi'ancing'means,-.so that thexelative shift-in position as theoperative s ne hermoves indicates the approach of .the .bqttoni oi-thesheet closerzandcloser to the predetermined 1point,'";which usually' istheprintin'gpointe aPreferably, also, I e mploy an OperativeLmer'nber,which-is rotary, so

that itiinaytu rnor rotate coordinately with theadvance of the sheetafter the operative m'emher has been called into, movement,' and "forconvenience-i1 apply the scaleor series of indices ito the saidrot a'ryoperative member "and mount the pointer or index upon some partof thieea'rriage. -{The sheet advancing means ordinarily-employed intypewriting maohinesiis a platen, and according'ly I have hereinjcombined-the rotaryoperative mew her with'j the platen through theslip-drive connections,--although the invention is not limited in allcases to the eomr;

bination of the'said member 'withthe .ordi

wholly ,by; friction. 'lhe shet-contrdlledi means for detaining therotary? operative nary platen. j The slip-drive connections I may be ofany approved type, but-prefer member in the presenceofthe sheet-and re,I

leasing it on the passage of the;bottom--of the sheet includes a feeleradapted-to, feel, for and engage with the sheet, and-means in connectiontherewith for holding'or detaining the rotary operative me'mberfrommove.

ment to actuate the indicating devices so 4 long as the sheet controlsthe position of the feeler, the said parts operating to release the saidmember to rotate in unison with the sheebadvancing means when thepassage of the bottom of the sheet releases the feeler.

The present division of the invention consists in i provemenls in theconstruction of the operative member amlin the slip-drive connections ofthe said member, as well as in the means and manner of eon'ihining thesaid member and sli rdrivc connect-kins with each other.

An embodiment of the invention is illuswhich Figure l is an end iew of aotionseries of indices and a pointer or index, one

A. .A., Fig. 1, of a portion of the same, but

trated in the accompanying drawings. in

with the spring 7 somewhat shifted so asto ap ieafrmore clearly in thedimdfif'gfi; Fig; 3 is-a top or plan View of the, parts shown] "'f 'il lfig l and Figrt is a sectional view' of a Haring reference to the,drawingskfthe usual. platen-arbor 13, hearing thereon the usual platen10 for advancing the sheet, is

' ,journaled in the ends of the usual carriagerotated. in usual mannerby line-spacing jrame 12, the -said carriage-frame. being" Tremblelaterally iii the usual manner upon the main frame, and the said platenbeing mechanism not. shown hereim as will be under'st-otttl by thoseslnlled inthe art.

-- "l.-'-lie.j eentriil lneinb'er of. the present enifer to employ isconstructed in the form of an annular shell 6 havin 'a' peripheral face7 provid'edWit-h a s'erie's o indices which coi- -o'perat'e \vithctli'efixed pointer or index 34.-

-- explained,

attached'to'thecarriageframe 12, as will be In typewriting; "machines asordinarily V constructed thedmesspace mechanism for 1 -atlvanc ng'tliesheet o'pera tes'to start' the platen ,into action with considerablesuddenness;the-platen thereupon moving for a ishort" distancewijth'con'siderable velocity,

Eand 'tliefe'nidofthe movement coiningto rablefabruptness. In the.

siicl in.:ahruptlyimoving platen, the fllCilOH:

nnect ed frictionally with he's uifie ient to overcome, in starting it:ertia of: the pa rt, and sufficient to over i'nth e amefangulnn relationwith the platen,

'. butwill sliiftfinone direction when starte'd amis the other when'stoppedr In prac- ":rti'ceflit'is'foundfth'at' such a. part-tends tothem nnentuni of thef'part shifts it for-n wardflyinore than' theinertia of it shifts- ;dri'ftin" line-space direction; that is to say,

it hackwardly the stopping action being more" sudden tlianthe starting.The greater will 'be its tendency to shift, It is possible the'i'nom'entum ofsuch. a part, the greater 2 to overcome the tendency byincreasing the frictionfibut in a paper-controlled ineeha bebeyond theability of a fra ile'substancef liltethin paper to perform. havetherefore found ,it desirable to, reduce tothe lowest convenient pointthe inertia of the.-

. carrier I empluy'hy using a light annular shell for a carrier, asillustrated in Fig. 2.

.1t is possible to reduce still .further the inertia 01 the carrier byconstructing it of :rnent through a frictional a'ctuatingmeans,

light frictional engagement of'gi'eat e e0- '11 isfnext to theplatense'ndj Betweenthe ,.ri1ns of the two disks* 1j1-and .111 isentered frictional driving engagement between the of dished form, with acentral in the momentum of Ethel otherwise 1 thepart will -not remainalight material lilce aluminum, but I have found theconstructionindicatedto be suflic1ent' l'yhght not to requirethe use ofsuch a materia. t H \Vhile I" prefer to give the carrier 6'moveit notessential that the slip-drive actuation be wholly frictionala Meanshavin a t veness-for the purpose isishown in my drawings. o

Referring first to Figs. 1, '2 and 3, mounted upon the platen-'arbor;1'3adjacent to one end of the-platen 10 are the frictionaldriving disks llandll. The disk an inwardly-projectingportion or-lip 84 of the indexcarrier" 6. The (inter lateral face of the said inwardly-projecting"lipconstitutes a shoulder, into contact withwhich the ,rim-portiofn .Of thediskJ IF- -is pressed by means of a spring 7 acting axially withrelaticn to the arbor 13.- .There is, .therefore, disk. 11% and tshoulder oithe carrier. The pressure of; the 5 ring 7 operates toholdthe inner surface of hip- .84 in closefrictional contactwith.t he'rirngportiong-of ,disk 11". Thus the -lip*;8 l is embriiced betwe'en twofrictional contact-surfaces; Thesspriiigfl is 7 eye that; en-- circlesthe platen-arbor, mm branches which:- bear theirextfemities against thesaid outerlateralslurface 0f the rim portionof diski; 11-,. ;Thespringf7 is confined between the disk 11 and air-facedisk li -,5: the latterbeing sleeiiedQu pon the platenarbor, and byjr'nea ns of'a clamping 1platen-arbor." The disl i;; 11 fitsgwithin the opening at the outer sideof theindex-czim rier, and closessuclr-opening -Tlie spring 7 thereforeacts axially with respectjto the platen-arbor 13. Annulus 6 is supportedr on the peripheries of thefldisks 11 and 11,

and is held from lateralv displacement "by the lip 84 entering betweendisks 11 and 1-1. The tension of" spring 7 is regulated in order to varythe degree of friction'alidrivingaction tending to rotateithesame-,simula taneously with the platenyby means of jad justing screws9,- 9, the stems of which pass I through holes in disks 11 and 11,,and'scre'w linto threaded holes that are. tapped in the disk Il whilethe flanged headsithereof engage with the disk 11'. To. regulate the;

tension ofthe spring 7. the-screws; 9,19, are

turned so as to adjust, the disks: 112i and-11 closer; together I orallow them to separate 5 mor'ef-or less. under the tendency o'ffthespring 7 to eitpand The annulus 6,;and:the disks 11., 11 ,11 with its hub,'aand spring 7,

are heldtogether by means ofscrews 9, 9,25

an assembled unit; and' areapplicabletoithe i platen-arbor 13 andremovable therefrom as an assembled unit.

The invention is not cise character ofvadjusting devices, and in somecases, if desired, adjusting means may be omitted.

The slip-driving means just described serve to cause the index-carrierto turn simultaneously with the platen, except when the index-carrier isheld from rotation, in which case the platen turns without turning theindex-carrier.

Referring, now, to the feeler devices,the frame extension on thecarriage frame 12 bears the laterally extending pin or axle 20 having ashoulder. Journaled on the said pin against the said shoulder is theshort sleeve 21 hearing the fixedly attached stoplcver 15. Against thesaid sleeve and journaled upon the same pin therewith is the sleeve 21,hearing the fixedly attached eccentrically-disposed weight 66, and thefixedly attached paper-feeler butt 28 The said butt bearsthe pin 23,upon which is pivoted the paper-feeler 28. A stop-pin24 on the said buttcooperates with a lug 65 on the said Ieeler to give a one-way knucklefiction to the parts. Acne-way stop-pin 62 on the before-named weight-66 likewise cooperates with the lug 63 on the stop-lever 15 to limit themovement of the stop-lever in one direction with respect to the weight.The paper-table 8, carried in usual manner upon the carriage frame 12,is supplied with a slot or opening 4, into which the before namedpaper-feeler 28 has its path. I place the centers 20 and 13 as closetogether as is convenient, and employ a relatively short stop-lever 15and a relatively long paperfeeler, in order that through the advantagein leverage the pressure of the feeler upon th sheet may be renderedlighter than it otl. *rtise would be. The stop-lever I5 is arranged toengage with a projection 14 extending laterally from the operativemeniinsertion, the side of the her or index-cairier 6.

The action of the mechanism is as fol lows: The paper-feeler under theaction of eccentric weight 66 as transmitted by sleeve 21, normallyoccupies a position retracted from the papentahle and against theplaten, as shown in Fig. 1, to permit of free sheetplaten 10 serving asa stop to limit the 'weightactuaied movement of the paper-teeler. Thestop-lever 15 is maintained aiormally in the path of the projection 14under the action of the same weight as-transinitted by stop 62 toprojection 63. The papenshcet 45 entered into the machine along thepaper-table 9. and advanced in the usual way through the in'strumentalitv oft'he platen. As the platen is rotated, the annulus orcarrier 6 also rotates under the-frictional actuation of the limited tothe par- 'ticulari form of theis'pring, nor to the pro same by 11, andthe projection 14 is eventually brought around thereby until itencounters the stop-lever 15 in its path; Further rota tion of theplaten presses the projection 14 against the said stop-lever,

per-path. If the sheet were not present, the paper-feeler would continueto be moved by the stopdevr until it had entered the slot- 4sufliciently far to permit the projection 14 to pass the saidstop-lever, whereupon both paper-feeler and stop-lever would be returnedto normal posit-ion by the weight 66. In that case the carrier 6 wouldcontinue revolving with theplaten without detention. When the sheet .ispresent, the paper-feeler cannot enter the slot 4, but'is detained bythe sheet, and in turn maintains the stoplever 15 in the path oftheprojection 14 so as to act as a stop thereon, and through the projectionas a stop upon the carrier or in dicator 6. The parts are maintained inthis relation and position during the 'further progress of the sheetuntil the end of the sheet passes out from under the feeler 28. Theinstant the slot 4 is cleared by thesheet, .the said feeler', no longerrestrained from entering the slot, passes into the slot, and therevo-luble part, 6, no longer detained by the stop 15, takes up itsmovement with the platen, moving thereafter coiirdinately with theplaten advanced sheet. As the said part 6 always begins its movementfrom the same angular position, it will always stop in a given angularposition after a given angular movement from starting position. and asmoreover it always begins its said movement when the end of the sheet isa constant distance from the printing point. since the point where thefeeler-end meets the sheet is necessarily fixedly distant from theprinting point, and as the sheet is advanced coordinately with the saidpart during the said movement of the member, the'end of the sheet willalways be a constant distance from the printing point at the end of thesaid given angular movement of the carrier. I place the stationary index34, shown as carried on the carriage frame 12, adjacent to the saidcarrier,- and. I supply the indicating portion of the said car 'rierwhich is presented opposite the said stationary index in the constantstarting position of the carrier with an index 89. Fig. 1 that willindicate that position of'the carrier: I further supply the said carrieropposite the stationary index after an advance of the. sheet and carriercoordinately l with eat-h other, with an index that will indicaic thenew position of the sheet: and so i on around the carrier for everysuccessive 3 position of the sheet, at will. That is to say. if afterthe first movement of the rethe frictional driving disks l1 and.

and through it v presses the paper-feeler 28 toward the paon thatportion thereof which is presented leased index-carrier the end of thesheet 1s distant seventeen single lines from the printing point, Isupply the indicating portion of the carrier then in indicating positionwith the index 17, and in order to indicate when the end of the sheet isdistant sixteen single lines, I supply the carrier with the index 16,and so on down to the end of the sheet. In my drawings I show theindication by single line progresses, the indices here bein numerals indescending order. Other indication than by single line indication may beemployed, and other units than the line unit. It is of course immaterialwhether the stationary and the movable indices come to relative restexactly opposite one another, or whether the distance be given to theend of the sheet or to a point a fixed distance therefrom, or whetherthe indices in themselves signify distance-units at all. I refer to usesimple numerals indicatin the decreasin distances to the end of the seet and invo ving no mental calculation nor memorizing on the part ofthe operator.

My invention serves to give the operator a signal that the end of thesheet is near. use for a stationary index a shield-pointer that concealsone portion of the carrier from the operator, and the carrier itself isdivided into two differentlv appearing segments, one of which is visibleto the operator during the detained position of the carrier, and theother of which is not visible but lies behind the shield-pointer in thatposition of the carrier. In my drawings I show the first named of thesesegments as containing no indices except the circular index 89, and bypreference I color this segment black, and the second of these segmentswhich I cause to bear indices I prefer to supply with aground of white,although these are not the only distinguishing means possible. \Vhen thesheet-end releases the carrier, and the white indexbearing segment comesinto view, the change from black to White"attracts the operatorsattention and he knows that the end of the sheet is within a givendistance away from his printing point. It of course not essential thatthe white index-bearing segment should come into view at the very firstfeedmovement of the platen after the release of the carrier to movetherewith-the black segment may be extended under the shieldpointer toany required extent so that several feed-movements will intervene beforethe white segment with its indices comes into view, so that this signalmay be given when thesheet-end attains any required distance from theprinting point. It is not essential that the white segment be suppliedwith indices, nor that the index-bearing portion of the carrier bedistinguished from the other portion.

0 oionmmm v Fig. 4 represents a. modification of my invention, describedas follows: Fixedly attached upon the platen arbor 13 is the frictionaldriver 11, supplied with a terrace or shoulder, upon which is placed thefriction Washer 11 and against the said friction washer is placed theinstanding portion or web 84' of the index-carrier 6'. A dished sheetspring 7 confined between said portion or web and the sleeve 106, bearsagainst one face of the said instanding portion or web 84, the saidspring acting with axially directed pressure so that the carrier ispressed axially against the said friction washer 11 and held infrictional connection therewith, and therefore in frictional connectionwith the platen so as to turn with the platen. A face-disk 11" journaledloosely on the sleeve 106 so as to rotate freely thereon in effect formspart of the 'said carrier through being fixedly connected with therim-portion of the carrier. As compared with the mechanism previouslydescribed, one difference between the two is that the spring 7, Figs. 1and 2, rotates with the platen; and another difierence is that thespring 7, (Fig. 4), bears immediately upon the instanding portion 84 ofi the carrier, whereas the spring 7, (Fig. 2) produces its effect uponthe instanding portion 84 through an intermediate part; and

still another is that the carrier 6 in Fig. '2 is an annulus, or annularin form, whereas the carrier 6 of Fig. 4 is more nearly a drum in form.These differences are mere differences in form. The carrier (3, inpractice is supplied with indices and visual signaling means such ashave been described in connection with the first three figures. Thesheet controlled parts are also the same, except that the stop-lever 15'has a bevel 30 upon it and the projection 14 a cooperating bevel 31 uponit, the engagement of the projection and the stop-lever resulting notonly in a stopping action upon the projection but tending at the sametime through the bevels to press the carrier 6' axially away from thefrictional driver 11 and to open or ease the friction between the saidparts. In other respects the action of the mechanism is the same as thatof the mechanism first described.

Provision is made for backward movement of the sheet at any time, in twoways. If the platen is moved backwardly while the feeler is in contactwith the sheet, the result in backward movement of the carrier 6 wilcause the projection 14 to move backwardly, relieving the stop 15 ofpressure, whereupon the weight 66 will be permitted to retract thefeeler from contact with the sheet. And if the sheet be advanced to'apoint ust after it has released the feeler, and g consider my andconvenient for use in practical embodiments of the main principles oftheinvention. I regard the indicating segments shown and described asconstituting an adequate signaling means. In addition they inform theoperator of the exact position of the bottom of the sheet. v M

It is to be noted that'the index-bearing part in some embodiments ofcertain of the features of the invention may vary more or less incharacter and construction in practice, and the means and manner ofactuating the same may vary without departure from the principles of theinvention. It is to be noted, also, that although I show the paperfeeler 28 as intersecting'the path of the pa per-sheet at thepaper-table 8, I do not limit myself to this construction.

The devices shown in the drawingsand described herein are part of aseries of closely related inventions or improvements which are presentedin a number of copending applications for Letters Patent filed by me.The said devices have a number of general objects in common with thoseforming the subject-matter of different applications in the said series,and to a certain extent embody and utilize various principles andfeatures which are common to devices shown and described in one oranother of the said applications. Some of the said common principles andfeatures are claimed broadly in my divisional application aforesaid, andin my application filed April 20, 1908, aforesaid, while others are mademore particularly the subject of claim in my applications filed Dec. 15,1909, Serial No. 533,309, andMar. 30, 1912, Serial No. 687 ,463. Thebranch of the general invention that is covered hereby is distin guishedby the characteristic features which are specified in the followingclaims.

Having thus clearly explained the nature and objects of my invention andthe manner of applying the same, I claim as new and desire to secure byLetters Patent- 1. In a typewriting machine, in combination, a platen,aseries of indices, frictional means having a. constant spring-pressedengagement acting to give the said indices movement correlated with thatof the platen, and sheetecontrolled means for detaining and releasingthe said indices.

2. In a typewriting machine, in combination, a platen, an operativemember, frictional means having a constant spring pressed engagementacting to give the said member movementcorrelated with that of theplaten, a sheet-controlled stop for detaining and releasing the saidmember, and

indicating means called into operation throu h said member.

3. n a typewriting machine, in combination, a platen, an indicator,frictional means having a constant spring-pressed engagement acting togive the said indicator movement correlated with that ofthe platen, anda paper-feeler controlling the movement of the said indicator so that itwill be suitably held in constant starting position and suitablyreleased to inoveiwitli the sheet when the sheet-end attains I aconstant distance from the printing point.

4, In a typewriting machine, in combina tion, a platen, an indexrcarrierand a connected projection, frictional means having a constantspring-pressed engagement acting to give the said carrier movementcorrelate with that of the platen, and sheet-controlled means fordetainingjand releasing the said icarrier through the said projection.

5. In a typewriting machine, in' combination, a platen, an index,frictional means having a constant spring-pressed engage,

ment acting to give the said index movement correlated with that of theplaten, and

a sheet-controlled stop for detaining and releasing the said index sothat it takes up movement with the sheet at a constant point in theprogress of the end of the sheet.

6. In a typewriting machine, in combination, a platen, an operativemember, indicating means called into operation through said member,frictional means including an axially acting dished pressure .spring forgiving the said member movement with the platen, and sheet-controlledmeans for detaining and releasing the said member.

7. In a typewriting machine, in combination, a platen, anoperativemember, indicating means called into operation throughsaidmember, frictional actuating means for the said member, including asymmetrically disposed axially ressing spring, and sheetcontrolled meansor detaining and releasing the said memberJ a 8. Ina typewritingmachine, in combination, a platen, an operative member, indicating meanscalled into operation throu h ing means called into operation throughsaid member, frictional connecting'means between the said member and theplaten, including a driving member and a spring disposed about the axisthereof and acting axially, and a sheet-controlled stop for controllingthe movement of the said operative member.

10. In a typewriting machine, in combination, a laten, an annulus havingan annular shoul er in connection therewith,a'n axially pressing springcooperating with the said shoulder to give the said annulus frictionalen agement movin' it with the platen, an sheet-controlle means fordetainin and releasing the said annulus.

11. n a typewriting machine, in combination, aplaten, an annulus and-aconnected projection, frictional 'means including a spring ior givingthe said annulus movement wit the laten, and sheet-controlled meanscooperating with 'the said pro'eotion to detain and releaseithe saidannulus.

12.. In a typewriting machine, in combination, a platen, an annulus anda connect ed projection, frictional means including an axially-pressingsprii ig for 'ving the said annulus movement. with t e platen, and apaper-feeler connected to control the movement of the said annulusthrough the said projection.

13. In a typewriting machine, in combination, a platen, an annulusfrictionally connected through spring-pressure to move normally with theplaten, and sheet controlled means for controlling the movement of thesaid annulus.

14. In a typewritingmachine, in combination, a platen, an operativemember hearing a fixedly attached projection, indicating means calledinto operation through said member, frictional connecting means betweenthe said member and the platen, having a pressure-spring with centralbacking, and sheetcontrolled means for detaining the said member, inconstant starting position and for releasing the member to move with theplaten when the sheet-end arrives at a constant distance from theprinting point.

In testimony whereof I aflix my signature in presence of two Witnesses;

WILLIAM J. NETDIG. Witnesses: p

CHAs. F. RANDALL, NATHAN B. DAY.

copies of this patent maybe obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0."

